net: hns: fix the bug about loopback

It will always be passed if the soc is tested the loopback cases. This
patch will fix this bug.

Signed-off-by: Kejian Yan <yankejian@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c

@@ -675,8 +675,12 @@ static int hns_ae_config_loopback(struct hnae_handle *handle,
 {
 	int ret;
 	struct hnae_vf_cb *vf_cb = hns_ae_get_vf_cb(handle);
+	struct hns_mac_cb *mac_cb = hns_get_mac_cb(handle);
 
 	switch (loop) {
+	case MAC_INTERNALLOOP_PHY:
+		ret = 0;
+		break;
 	case MAC_INTERNALLOOP_SERDES:
 		ret = hns_mac_config_sds_loopback(vf_cb->mac_cb, en);
 		break;
@@ -686,6 +690,10 @@ static int hns_ae_config_loopback(struct hnae_handle *handle,
 	default:
 		ret = -EINVAL;
 	}
+
+	if (!ret)
+		hns_dsaf_set_inner_lb(mac_cb->dsaf_dev, mac_cb->mac_id, en);
+
 	return ret;
 }
 

drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c

@@ -230,6 +230,30 @@ static void hns_dsaf_mix_def_qid_cfg(struct dsaf_device *dsaf_dev)
 	}
 }
 
+static void hns_dsaf_inner_qid_cfg(struct dsaf_device *dsaf_dev)
+{
+	u16 max_q_per_vf, max_vfn;
+	u32 q_id, q_num_per_port;
+	u32 mac_id;
+
+	if (AE_IS_VER1(dsaf_dev->dsaf_ver))
+		return;
+
+	hns_rcb_get_queue_mode(dsaf_dev->dsaf_mode,
+			       HNS_DSAF_COMM_SERVICE_NW_IDX,
+			       &max_vfn, &max_q_per_vf);
+	q_num_per_port = max_vfn * max_q_per_vf;
+
+	for (mac_id = 0, q_id = 0; mac_id < DSAF_SERVICE_NW_NUM; mac_id++) {
+		dsaf_set_dev_field(dsaf_dev,
+				   DSAFV2_SERDES_LBK_0_REG + 4 * mac_id,
+				   DSAFV2_SERDES_LBK_QID_M,
+				   DSAFV2_SERDES_LBK_QID_S,
+				   q_id);
+		q_id += q_num_per_port;
+	}
+}
+
 /**
  * hns_dsaf_sw_port_type_cfg - cfg sw type
  * @dsaf_id: dsa fabric id
@@ -691,6 +715,16 @@ void hns_dsaf_set_promisc_mode(struct dsaf_device *dsaf_dev, u32 en)
 	dsaf_set_dev_bit(dsaf_dev, DSAF_CFG_0_REG, DSAF_CFG_MIX_MODE_S, !!en);
 }
 
+void hns_dsaf_set_inner_lb(struct dsaf_device *dsaf_dev, u32 mac_id, u32 en)
+{
+	if (AE_IS_VER1(dsaf_dev->dsaf_ver) ||
+	    dsaf_dev->mac_cb[mac_id].mac_type == HNAE_PORT_DEBUG)
+		return;
+
+	dsaf_set_dev_bit(dsaf_dev, DSAFV2_SERDES_LBK_0_REG + 4 * mac_id,
+			 DSAFV2_SERDES_LBK_EN_B, !!en);
+}
+
 /**
  * hns_dsaf_tbl_stat_en - tbl
  * @dsaf_id: dsa fabric id
@@ -1022,6 +1056,9 @@ static void hns_dsaf_comm_init(struct dsaf_device *dsaf_dev)
 	/* set promisc def queue id */
 	hns_dsaf_mix_def_qid_cfg(dsaf_dev);
 
+	/* set inner loopback queue id */
+	hns_dsaf_inner_qid_cfg(dsaf_dev);
+
 	/* in non switch mode, set all port to access mode */
 	hns_dsaf_sw_port_type_cfg(dsaf_dev, DSAF_SW_PORT_TYPE_NON_VLAN);
 

drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h

@@ -417,5 +417,6 @@ void hns_dsaf_get_strings(int stringset, u8 *data, int port);
 void hns_dsaf_get_regs(struct dsaf_device *ddev, u32 port, void *data);
 int hns_dsaf_get_regs_count(void);
 void hns_dsaf_set_promisc_mode(struct dsaf_device *dsaf_dev, u32 en);
+void hns_dsaf_set_inner_lb(struct dsaf_device *dsaf_dev, u32 mac_id, u32 en);
 
 #endif /* __HNS_DSAF_MAIN_H__ */

drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h

@@ -134,6 +134,7 @@
 #define DSAF_XGE_INT_STS_0_REG		0x1C0
 #define DSAF_PPE_INT_STS_0_REG		0x1E0
 #define DSAF_ROCEE_INT_STS_0_REG	0x200
+#define DSAFV2_SERDES_LBK_0_REG         0x220
 #define DSAF_PPE_QID_CFG_0_REG		0x300
 #define DSAF_SW_PORT_TYPE_0_REG		0x320
 #define DSAF_STP_PORT_TYPE_0_REG	0x340
@@ -857,6 +858,10 @@
 #define PPEV2_CFG_RSS_TBL_4N3_S	24
 #define PPEV2_CFG_RSS_TBL_4N3_M	(((1UL << 5) - 1) << PPEV2_CFG_RSS_TBL_4N3_S)
 
+#define DSAFV2_SERDES_LBK_EN_B  8
+#define DSAFV2_SERDES_LBK_QID_S 0
+#define DSAFV2_SERDES_LBK_QID_M	(((1UL << 8) - 1) << DSAFV2_SERDES_LBK_QID_S)
+
 #define PPE_CNT_CLR_CE_B	0
 #define PPE_CNT_CLR_SNAP_EN_B	1
 

drivers/net/ethernet/hisilicon/hns/hns_ethtool.c

@@ -295,8 +295,10 @@ static int __lb_setup(struct net_device *ndev,
 
 	switch (loop) {
 	case MAC_INTERNALLOOP_PHY:
-		if ((phy_dev) && (!phy_dev->is_c45))
+		if ((phy_dev) && (!phy_dev->is_c45)) {
 			ret = hns_nic_config_phy_loopback(phy_dev, 0x1);
+			ret |= h->dev->ops->set_loopback(h, loop, 0x1);
+		}
 		break;
 	case MAC_INTERNALLOOP_MAC:
 		if ((h->dev->ops->set_loopback) &&
@@ -376,6 +378,7 @@ static void __lb_other_process(struct hns_nic_ring_data *ring_data,
 			       struct sk_buff *skb)
 {
 	struct net_device *ndev;
+	struct hns_nic_priv *priv;
 	struct hnae_ring *ring;
 	struct netdev_queue *dev_queue;
 	struct sk_buff *new_skb;
@@ -385,8 +388,17 @@ static void __lb_other_process(struct hns_nic_ring_data *ring_data,
 	char buff[33]; /* 32B data and the last character '\0' */
 
 	if (!ring_data) { /* Just for doing create frame*/
+		ndev = skb->dev;
+		priv = netdev_priv(ndev);
+
 		frame_size = skb->len;
 		memset(skb->data, 0xFF, frame_size);
+		if ((!AE_IS_VER1(priv->enet_ver)) &&
+		    (priv->ae_handle->port_type == HNAE_PORT_SERVICE)) {
+			memcpy(skb->data, ndev->dev_addr, 6);
+			skb->data[5] += 0x1f;
+		}
+
 		frame_size &= ~1ul;
 		memset(&skb->data[frame_size / 2], 0xAA, frame_size / 2 - 1);
 		memset(&skb->data[frame_size / 2 + 10], 0xBE,
@@ -486,6 +498,7 @@ static int __lb_run_test(struct net_device *ndev,
 
 	/* place data into test skb */
 	(void)skb_put(skb, size);
+	skb->dev = ndev;
 	__lb_other_process(NULL, skb);
 	skb->queue_mapping = NIC_LB_TEST_RING_ID;